src/compiler: use new hash table and set creation helpers

Replace calls to create hash tables and sets that use
_mesa_hash_pointer/_mesa_key_pointer_equal with the helpers
_mesa_pointer_hash_table_create() and _mesa_pointer_set_create().

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Eric Engestrom <eric@engestrom.ch>

src/compiler/glsl/loop_analysis.cpp

@@ -252,8 +252,7 @@ loop_variable::record_reference(bool in_assignee,
 
 loop_state::loop_state()
 {
-   this->ht = _mesa_hash_table_create(NULL, _mesa_hash_pointer,
-                                      _mesa_key_pointer_equal);
+   this->ht = _mesa_pointer_hash_table_create(NULL);
    this->mem_ctx = ralloc_context(NULL);
    this->loop_found = false;
 }